Datasheet

ManualsBrandsINFINEON TECHNOLOGIES ManualsVoltage RegulatorsTLE4271-2G

Type Package

TLE 4271-2 PG-TO220-7-11

TLE 4271-2 S PG-TO220-7-12

TLE 4271-2 G PG-TO263-7-1

5-V Low Drop Fixed Voltage Regulator

TLE 4271-2

P-TO220-7-11

P-TO220-7-12

P-TO263-7-1

Data Sheet 1 Rev. 2.7, 2007-06-25

Features

• Output voltage tolerance ≤ ±2%

• Low-drop voltage

• Integrated overtemperature protection

• Reverse polarity protection

• Input voltage up to 42 V

• Overvoltage protection up to 65 V (≤ 400 ms)

• Short-circuit proof

• Suitable for use in automotive electronics

• Wide temperature range

• Adjustable reset and watchdog time

• Green Product (RoHS compliant)

• AEC Qualified

Functional Description

The TLE 4271-2 is functional and electrical identical to

TLE 4271.

The device is a 5-V low drop fixed voltage regulator. The

maximum input voltage is 42 V (65 V, ≤ 400 ms). Up to

an input voltage of 26 V and for an output current up to

550 mA it regulates the output voltage within a 2%

accuracy. The short circuit protection limits the output

current of more than 650 mA. The IC can be switched off

via the inhibit input. An integrated watchdog monitors the

connected controller. The device incorporates

overvoltage protection and temperature protection that

disables the circuit at overtemperature.

Summary of content (23 pages)

PAGE 1
5-V Low Drop Fixed Voltage Regulator TLE 4271-2 Features • • • • • • • • • • • • Output voltage tolerance ≤ ±2% Low-drop voltage Integrated overtemperature protection Reverse polarity protection Input voltage up to 42 V Overvoltage protection up to 65 V (≤ 400 ms) Short-circuit proof Suitable for use in automotive electronics Wide temperature range Adjustable reset and watchdog time Green Product (RoHS compliant) AEC Qualified P-TO220-7-11 ^ Functional Description P-TO220-7-12 The TLE 4271-2 is funct
PAGE 2
TLE 4271-2 PG-TO220-7-11 PG-TO220-7-12 PG-TO263-7-1 1 7 Ι 1 7 1 7 RO D Q INH GND WI AEP01938 Ι RO D Q INH GND WI Ι RO D Q INH GND WI AEP02017 AEP01939 Figure 1 Pin Configuration (top view) Table 1 Pin Definitions and Functions Pin Symbol Function 1 I Input; block to ground directly on the IC with ceramic capacitor. 2 INH Inhibit 3 RO Reset Output; the open collector output is connected to the 5 V output via an integrated resistor of 30 kΩ.
PAGE 3
TLE 4271-2 Circuit Description The control amplifier compares a reference voltage, which is kept highly accurate by resistance adjustment, to a voltage that is proportional to the output voltage and drives the base of a series transistor via a buffer. Saturation control as a function of the load current prevents any over-saturation of the power element. The reset output RO is in high-state if the voltage on the delay capacitor CD is greater or equal VUD.
PAGE 4
TLE 4271-2 Saturation Control and Protection Circuit Temperature Sensor Ι 7 1 Control Amplifier Adjustment Bandgap Reference 3 Buffer + - Reset Generator Watchdog 2 INH Figure 2 Data Sheet 4 GND 5 6 Q RO D WI AEB01940 Block Diagram 4 Rev. 2.
PAGE 5
TLE 4271-2 Table 2 Absolute Maximum Ratings Tj = -40 to 150 °C Parameter Symbol Limit Values Unit Notes Min. Max. VI VI II -42 – – 42 65 – V V mA – VINH VINH IINH -42 – – 42 65 – V V mA – VRO IRO -0.3 – 42 – V mA – internally limited VD ID -0.3 -5 7 5 V mA – – VW IW -0.3 -5 7 5 V mA – – VQ IQ -1.0 -5 16 – V mA – internally limited IGND -0.
PAGE 6
TLE 4271-2 Table 3 Operating Range Parameter Symbol Limit Values Unit Notes Min. Max. VI Tj 6 40 V – -40 150 °C – Junction ambient Rthja – – 65 70 K/W K/W – PG-TO263-7-1 Junction case Rthjc Zthjc – – 3 2 K/W K/W – Input voltage Junction temperature Thermal Resistance Data Sheet 6 t < 1 ms Rev. 2.
PAGE 7
TLE 4271-2 Table 4 Characteristics VI = 13.5 V; -40 °C ≤ Tj ≤ 125 °C; VINH > VU,INH (unless otherwise specified) Parameter Symbol Limit Values Min. Typ. Max. Unit Test Condition Output voltage VQ 4.90 5.00 5.10 V 5 mA ≤ IQ ≤ 550 mA; 6 V ≤ VI ≤ 26 V Output voltage VQ 4.90 5.00 5.
PAGE 8
TLE 4271-2 Table 4 Characteristics (cont’d) VI = 13.5 V; -40 °C ≤ Tj ≤ 125 °C; VINH > VU,INH (unless otherwise specified) Parameter Symbol Limit Values Unit Test Condition Min. Typ. Max. 4.5 4.65 4.8 V – 4.5 – – V – Saturation voltage VRT VROH VRO,SAT – 60 – mV Saturation voltage VRO,SAT – 200 400 mV Rintern = 30 kΩ; 1.0 V ≤ VQ ≤ 4.5 V IR = 3 mA2); VQ = 4.4 V Reset pull-up R 18 30 46 kΩ internally connected to Q Lower reset timing threshold VLD 0.2 0.45 0.
PAGE 9
TLE 4271-2 Table 4 Characteristics (cont’d) VI = 13.5 V; -40 °C ≤ Tj ≤ 125 °C; VINH > VU,INH (unless otherwise specified) Parameter Symbol Watchdog trigger time tWI,tr Watchdog pulse slew rate VWI Limit Values Min. Typ. Max. 30 45 66 Unit Test Condition ms CD = 100 nF see diagram 5 – – V/µs from 20% to 80% VQ 1) Drop voltage = VI - VQ (measured when the output voltage has dropped 100 mV from the nominal value obtained at 13.
PAGE 10
TLE 4271-2 ΙΙ 1 1000 µF 7 ΙQ 22 µF 470 nF TLE 4271-2 Ι 3 RO 2 VΙ 5 ΙD V INH VD VQ 4 6 Ι GND V WI CD V RO AES01941 Figure 3 Test Circuit 7 1 Input 5 V-Output 470 nF Input e.g. KL 15 2 Reset to MC 3 TLE 4271-2 6 4 Watchdog Signal from MC Figure 4 Data Sheet 22 µF 5 100 nF AES01942 Circuit 10 Rev. 2.
PAGE 11
TLE 4271-2 Application Description The IC regulates an input voltage in the range of 6 V < VI < 40 V to VQnom = 5.0 V. Up to 26 V it produces a regulated output current of more than 550 mA. Above 26 V the saveoperating-area protection allows operation up to 36 V with a regulated output current of more than 300 mA. Overvoltage protection limits operation at 42 V. The overvoltage protection hysteresis restores operation if the input voltage has dropped below 36 V.
PAGE 12
TLE 4271-2 The reset reaction time trr is the time it takes the voltage regulator to set the reset out LOW after the output voltage has dropped below the reset threshold. It is typically 1 µs for delay capacitor of 47 nF.
PAGE 13
TLE 4271-2 Watchdog Timing V WΙ VΙ VQ VD t WΙ, tr t WD, P VUDW VLDW t WD, L VR t WΙ, tr = Figure 6 Data Sheet (V UDW - VLDW ) Ι DWD C D ; t WD, P = (V UDW - VLDW ) (V UDW - VLDW ) (Ι DWC + Ι DWD ) t WD, L = C ; CD D Ι DWC . Ι DWD Ι DWC AES03078 Time Response, Watchdog Behavior 13 Rev. 2.
PAGE 14
TLE 4271-2 Typical Performance Characteristics Output Voltage VQ versus Temperature Tj VQ Output Voltage VQ versus Input Voltage VI (VINH = VI) AED01928 5.2 V AED01929 12 VQ 5.1 V 10 VI = 13.5 V 5.0 8 4.9 6 4.8 4 4.7 2 4.6 -40 0 40 80 0 120 ˚C 160 Tj Data Sheet 14 R L = 25 Ω 0 2 4 6 8 V 10 VΙ Rev. 2.
PAGE 15
TLE 4271-2 Output Current Limit IQ versus Temperature Tj Output Current IQ versus Input Voltage VI AED01930 1200 mA I Q max IQ A 1000 1.0 800 0.8 600 0.6 400 0.4 200 0.2 0 -40 0 40 80 AED01931 1.2 0 120 ˚C 160 T j = 125 ˚C 25 ˚C 0 10 20 30 40 V 50 Tj VI Current Consumption Iq versus Output Current IQ Current Consumption Iq versus Output Current IQ Ιq AED03076 6 mA Ιq AED03077 80 mA 70 5 60 4 50 40 3 VΙ = 13.5 V 30 2 VΙ = 13.
PAGE 16
TLE 4271-2 Current Consumption Iq versus Input Voltage VI Drop Voltage Vdr versus Output Current IQ AED01934 120 AED02755 800 mV V Dr 700 Iq mA 100 600 80 500 T j = 125 C R L = 10 Ω 60 400 300 40 R L = 20 Ω 50 Ω 20 0 T j = 25 C 200 100 0 10 20 30 0 40 V 50 0 200 600 400 mA ΙQ VI Inhibit Current IINH versus Inhibit Voltage VINH Output Voltage VQ versus Inhibit Voltage VINH AED01944 12 AED01945 6 Ι INH, high µA Ι INH 10 VQ V 5 V Ι = 13.
PAGE 17
TLE 4271-2 Inhibit Current Consumptions IINH versus Temperature Tj AED01946 14 Ι INH Inhibit Voltages VINH versus Temperature Tj AED01947 6 µA 12 V INH Ι INH, high V 5 10 4 8 Ι INH, on 3 6 V INH, on 2 4 1 2 V INH, off Ι INH, off 0 -40 0 40 80 120 Tj 0 -40 160 0 40 80 120 C 160 Tj Switching Voltage VUD and VLDW versus Temperature Tj AED01948 2.4 V V Ι = 13.5 V V 2.0 V UD , V UDW 1.6 1.2 0.8 0.4 V LDW 0 -40 Data Sheet 0 40 80 120 C 160 Tj 17 Rev. 2.
PAGE 18
TLE 4271-2 Charge Current ID, IDWC and Discharge Current IDWD versus Temperature Tj 16 µA I 14 Watchdog Pulse Time Tw versus Temperature Tj AED01949 I D, I DWC 12 60 10 50 VI = 13.5 V VD = 1 V 8 AED01950 80 ms T W 70 V Ι = 13.5 V C D = 100 nF 40 30 6 20 4 I DWD 10 2 0 -40 0 40 80 0 -40 120 ˚C 160 Tj Data Sheet 18 0 40 80 120 C 160 Tj Rev. 2.
PAGE 19
TLE 4271-2 Package Outlines 10 ±0.2 A 9.9 ±0.2 9.8 ±0.15 1.27 ±0.1 0.25 3.7 ±0.3 10.2 ±0.3 C 0.5 ±0.1 2.4 7x 0.6 ±0.1 6x 1.27 1) 0.05 1.6 ±0.3 2.8 ±0.2 3.7 -0.15 8.6 ±0.3 0...0.15 9.25 ±0.2 1) 13.4 15.65 ±0.3 17 ±0.3 8.5 4.4 1) 3.9 ±0.4 M A C 8.4 ±0.4 Typical All metal surfaces tin plated, except area of cut.
PAGE 20
TLE 4271-2 10 ±0.2 A 9.8 ±0.15 B 0...0.15 13 ±0.5 0.05 0.5 ±0.1 7x 0.6 ±0.1 1.27 9.25 ±0.2 1.27 ±0.1 11±0.5 C 1) 4.4 2.8 ±0.2 1) 13.4 17 ±0.3 15.65 ±0.3 8.5 1) 3.7 -0.15 2.4 0.25 M A B C Typical All metal surfaces tin plated, except area of cut.
PAGE 21
TLE 4271-2 4.4 10 ±0.2 1.27 ±0.1 0...0.3 B 0.05 2.4 0.1 4.7 ±0.5 2.7 ±0.3 7.551) 1±0.3 9.25 ±0.2 (15) A 8.5 1) 0...0.15 7 x 0.6 ±0.1 6 x 1.27 0.5 ±0.1 0.25 M A B 8˚ MAX. 1) Typical Metal surface min. X = 7.25, Y = 6.9 All metal surfaces tin plated, except area of cut. Figure 9 0.
PAGE 22
TLE 4271-2 Revision History Version Date Rev. 2.7 2007-03-20 Initial version of RoHS-compliant derivate of TLE 4271-2 Page 1: AEC certified statement added Page 1 and Page 19 ff: RoHS compliance statement and Green product feature added Page 1 and Page 19 ff: Package changed to RoHS compliant version Legal Disclaimer updated Data Sheet Changes 22 Rev. 2.
PAGE 23
Edition 2007-06-25 Published by Infineon Technologies AG 81726 Munich, Germany © 2007 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics.